I've tried gut/poly hybrids but the tension loss of the poly makes this silly for non-pros. Looking for synguts with similar stiffness (USRSA specs) as poly and similar tension loss as natural gut (USRSA specs), I found: Gamma Marathon DPC 17 (stiffness: 228, tension loss: 9.42 lbs.) Gamma Syngut w/Wearguard 17 (stiffness: 203, tension loss: 9.15) Comparing to Klip Legend 17 natural gut (stiff: 113, tension loss: 9.31), it appears that both of these synguts lose tension about the same. Comparing these two synguts to a poly like Luxilon Alu Power Rough (stiff: 240, tension loss: 18.4), it appears that the synguts are nearly as stiff, but lose about half the tension. Both these Gamma synguts seem to have a tough/slippery coating from their descriptions (although I'm not sure how this compares to poly's slick, non-notching qualities), so they may work just as well as a cross with gut mains in terms of spin and string movement, while maintaining tension much better. Would this work? Anyone tried this combo? Any downsides or potential disasters? Thanks.